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1 Polish Maritime Research

1 2002

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Propulsion prognosis for a ship according to the zero version (0-JH) of the new power prediction method

Jarzyna H., Tuszkowska T.

Polish Maritime Research

2002

Vol. 9, nr 3

3-7

The ITTC-78 power prediction method can be divided into three groups of procedures: R TS - procedures, T BS - procedures and the Q BS - procedures. Only the Q BS - procedures were analyzed in the paper [7] where a new approach to the determination of Q BS and n S parameters was given. A new idea of the equivalent open propeller is the basic difference between the Q BS - ITTC procedures and the new Q BS - procedures called JH ones. This paper presents the numerical results of power prediction for a selected ship, obtained with the use of the zero version (0-JH) of the new method (in its 0-JH3 variant). A comparison between the ITTC-78 method, 0-JH3 method and sea trial results was also given.